Vent header

A section of a message, ordinarily at the beginning, that routes it to its destination and often identifies the sender. Another type of header is text such as numbers or chapter ...

header

Printing & publishing; Publishing

A line or lines of text set to display at the top of every page in a document or publication, usually for identification; may include graphic lines or automatic page sequencing, ...

header

Building materials; Lumber

Heavier framing - usually doubled and laid on edge - at the top of a window, door, or other opening. In masonry, a header course of bricks or stones laid on edge provvides ...

header

Computer; Software; Software engineering

(1) A block of comments placed at the beginning of a computer program or routine.~(2) Identification or control information placed at the beginning of a file or message.

cistern

Construction; Architecture; Building/real property; Carpentry; Demolition/excavation

water recipient like a well or a tank

acrylic

Construction; Plumbing

A thermoplastic (heat activated) used on the surfaces of bathtubs and whirlpools. It usually comes in sheets and is backed by fiberglass to form waterproof shower walls.

adaptor

Construction; Plumbing

A fitting that unites different types of pipe together, for example: ABS (Aristocraft bristone styrine) to cast iron pipe.

alkalinity

Construction; Plumbing

The measurement of constituents in a water supply which determine alkaline conditions. The alkalinity of water is a measure of its capacity to neutralize acids, also referred to ...

aerator

Construction; Plumbing

A device screwed into the end of a faucet spout that mixes air into flowing water, and controls flow to reduce splashing. It sometimes contains a baffle to reduce flow to 2.5 gpm.

acidity

Construction; Plumbing

The level of concentration of acid in water. Acid will neutralize an alkali or base. It is usually expressed in terms of its calcium carbonate equivalent .

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Industry/Domain: Natural environment Category: Climate change

Earth Hour

Originated in Sydney in 2007, Earth Hour is a global event held annually on the last Saturday of March to raise awareness of the need to protect the ...